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Re: [Qemu-devel] [PATCH 0/2] USB CCID device


From: Gerd Hoffmann
Subject: Re: [Qemu-devel] [PATCH 0/2] USB CCID device
Date: Wed, 06 Oct 2010 10:55:07 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.9) Gecko/20100827 Red Hat/3.1.3-1.el6 Thunderbird/3.1.3

On 10/06/10 02:28, Alon Levy wrote:


Does this work with live migration?  I can't see how it would.


No, it doesn't right now. It would require cooperation with the client,
to tell it to reconnect to the target qemu (kind of like spice).

I think until we have this migration should have pretty much the same effect as a chardev disconnect, i.e. detach the usb device (which the guest will see as unplug).

Needs some code though, at minimum you'll have to xfer the connected state from the migration source and have some bits in post_load() which do attach/detach if needed.

cheers,
  Gerd




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